Well I set up my Yamaha YP-B4 yesterday and have a few concerns. It seems like the cartridge might be bad. When listening to a piece of music that reaches a dynamic peak, it seems to start crackling/distorting, and not just a little bit. It sounds like loud popping coming through both channels. Seeing as how I just bought this yesterday and used, it seems that a new cartridge/stylus may be in order. What is the concensus?